Experimental investigation of the double layer capacity, X-ray diffraction and the relative surface content of TiH2 during pretreatment of titanium used for the preparation of dimensionally stable anodes with RuO2 and/or IrO2 coating

Krýsa, Josef; Mraz, R.

doi:10.1016/0013-4686(94)00234-r

Cited by 23 publications

(8 citation statements)

References 18 publications

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“…2C the repulsive interactions are presented (between equally charged surface complexes). The effect of the concentration of the background electrolyte is taken into account only by using the formula for κ (19), which occurs in the assumed interaction potential (18). There is a large number of theoretical equations for the effective dielectric constant of the mixture (e.g., Maxwell-Garmett [33,34], Böttcher [34]), but in these investigations the influence of the electrolyte concentration onto ε w and ε s is neglected.…”

Section: Resultsmentioning

confidence: 99%

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Monte Carlo simulation of the electrical differential capacitance of a double electrical layer formed at the heterogeneous metal oxide/electrolyte interface

Zarzycki

2006

Journal of Colloid and Interface Science

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Section: Resultsmentioning

confidence: 99%

“…formed at the membrane. Krysa and Mraz [18] published c d measured for the titanium electrode with a layer of RuO 2 and IrO 2 by changing the potential electrode. Krysa and Mraz [18] observed an exponential decrease of c d without any extrema, but a similar approach for the cadmium electrode gave a large number of local extrema [19].…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo simulation of the electrical differential capacitance of a double electrical layer formed at the heterogeneous metal oxide/electrolyte interface

Zarzycki

2006

Journal of Colloid and Interface Science

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“…The presence of TiH 2 peaks after acid etching with HCl and H 2 SO 4 is consistent with the data reported elsewhere. 33,34 No other substantial changes in the surface crystallinity of the substrata after the different surface modification treatments were detected, as demonstrated in Figure S3.…”

Section: Resultsmentioning

confidence: 88%

“…M-HCl and M-H 2 SO 4 substrates exhibited diffraction peaks for TiH 2 , which was formed after the acid etching treatment, as shown in eq 3 (Supporting Information). The presence of TiH 2 peaks after acid etching with HCl and H 2 SO 4 is consistent with the data reported elsewhere. , No other substantial changes in the surface crystallinity of the substrata after the different surface modification treatments were detected, as demonstrated in Figure S3.…”

Section: Resultsmentioning

confidence: 99%

Modulation of MG-63 Osteogenic Response on Mechano-Bactericidal Micronanostructured Titanium Surfaces

Sousa

Linklater

Murdoch

et al. 2023

ACS Appl. Bio Mater.

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Despite recent advances in the development of orthopedic devices, implant-related failures that occur as a result of poor osseointegration and nosocomial infection are frequent. In this study, we developed a multiscale titanium (Ti) surface topography that promotes both osteogenic and mechanobactericidal activity using a simple two-step fabrication approach. The response of MG-63 osteoblast-like cells and antibacterial activity toward Pseudomonas aeruginosa and Staphylococcus aureus bacteria was compared for two distinct micronanoarchitectures of differing surface roughness created by acid etching, using either hydrochloric acid (HCl) or sulfuric acid (H 2 SO 4 ), followed by hydrothermal treatment, henceforth referred to as either MN-HCl or MN-H 2 SO 4 . The MN-HCl surfaces were characterized by an average surface microroughness (S a ) of 0.8 ± 0.1 μm covered by blade-like nanosheets of 10 ± 2.1 nm thickness, whereas the MN-H 2 SO 4 surfaces exhibited a greater S a value of 5.8 ± 0.6 μm, with a network of nanosheets of 20 ± 2.6 nm thickness. Both micronanostructured surfaces promoted enhanced MG-63 attachment and differentiation; however, cell proliferation was only significantly increased on MN-HCl surfaces. In addition, the MN-HCl surface exhibited increased levels of bactericidal activity, with only 0.6% of the P. aeruginosa cells and approximately 5% S. aureus cells remaining viable after 24 h when compared to control surfaces. Thus, we propose the modulation of surface roughness and architecture on the micro-and nanoscale to achieve efficient manipulation of osteogenic cell response combined with mechanical antibacterial activity. The outcomes of this study provide significant insight into the further development of advanced multifunctional orthopedic implant surfaces.

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“…However, the surface color after etching in HCl was dark gray due to titanium hydride (TiH 2 ), which was confirmed by other work. 9,11,12 The Ti substrate etched in oxalic acid had a puddle-shape keeping the initial morphology as before etching. On the other hand, that etched in HCl had a sharp rippled surface with fine roughness without the initial grain boundary shape present before etching.…”

Section: Resultsmentioning

confidence: 99%

Effect of an Etching Ti Substrate on a Catalytic Oxide Electrode

Lee

Kim

Shin³

et al. 2001

J. Electrochem. Soc.

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This work has investigated the effects of the etching method of a Ti substrate for a catalytic oxide electrode on the electrochemical characteristics of the electrode. The HCl etching develops a finer and more homogeneous roughness on the Ti substrate than an oxalic acid etching. The etching results affect the physical adhesion of the oxide on the substrate, the morphology of the oxide surface after sintering, and the loading amount of oxide loaded after painting precursor solutions simultaneously. Such changes subsequently bring out the changes in the electrochemical properties of the oxide electrodes such as electrochemical activity and lifetime.

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Experimental investigation of the double layer capacity, X-ray diffraction and the relative surface content of TiH2 during pretreatment of titanium used for the preparation of dimensionally stable anodes with RuO2 and/or IrO2 coating

Cited by 23 publications

References 18 publications

Monte Carlo simulation of the electrical differential capacitance of a double electrical layer formed at the heterogeneous metal oxide/electrolyte interface

Monte Carlo simulation of the electrical differential capacitance of a double electrical layer formed at the heterogeneous metal oxide/electrolyte interface

Modulation of MG-63 Osteogenic Response on Mechano-Bactericidal Micronanostructured Titanium Surfaces

Effect of an Etching Ti Substrate on a Catalytic Oxide Electrode

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